Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Phase transition of indium hydroxide to indium oxide at low temperatures

저온에서의 indium hydroxide에서 indium oxide로의 상전이

  • Choi, Eun-Kyoung (Korea Institute of Ceramic Engineering and Technology) ;
  • Lee, Won-Jun (Korea Institute of Ceramic Engineering and Technology) ;
  • Han, Kyu-Sung (Korea Institute of Ceramic Engineering and Technology) ;
  • Kim, Ung-Soo (Korea Institute of Ceramic Engineering and Technology) ;
  • Kim, Jin-Ho (Korea Institute of Ceramic Engineering and Technology) ;
  • Hwang, wang-Teak (Korea Institute of Ceramic Engineering and Technology) ;
  • Hwang, Hae-Jin (School of Material Science and Engineering, Inha University) ;
  • Shim, Kwang-Bo (Department of Materials Science and Engineering, Hanyang University) ;
  • Cho, Woo-Seok (Korea Institute of Ceramic Engineering and Technology)
  • 최은경 (한국세라믹기술원 이천분원) ;
  • 이원준 (한국세라믹기술원 이천분원) ;
  • 한규성 (한국세라믹기술원 이천분원) ;
  • 김응수 (한국세라믹기술원 이천분원) ;
  • 김진호 (한국세라믹기술원 이천분원) ;
  • 황광택 (한국세라믹기술원 이천분원) ;
  • 황해진 (인하대학교 신소재공학부) ;
  • 심광보 (한양대학교 신소재공학부) ;
  • 조우석 (한국세라믹기술원 이천분원)
  • Received : 2018.03.18
  • Accepted : 2018.04.15
  • Published : 2018.04.30
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Abstract

Indium hydroxide powder was prepared by precipitation method. The reaction temperature ($150{\sim}250^{\circ}C$) and the holding time at each reaction temperature (1~72 h) were used as experimental variables. The particle size, microstructure and crystal phase of each prepared powder were observed through X-ray diffraction (XRD), Transmission electron microscope (FE-TEM) and BET. In this study, we investigated the phase and microstructural change induced by heat treatment of indium hydroxide nanoparticles at various temperatures for different holding times.

Indium hydroxide 분말이 침전법으로 제조되었다. 반응온도($150{\sim}250^{\circ}C$)와 각 반응온도에서의 유지시간(1~72 h)이 실험 변수로 사용되었다. 각각의 제조된 분말을 X-선 회절 분석기(XRD)와 투과전자현미경(FE-TEM), BET를 통해 입자크기, 미세구조 및 결정상을 관찰하였다. 본 연구에서는 침전법에 의해 제조된 Indium hydroxide가 열처리 시 반응온도와 각 반응온도에서의 유지시간에 따라 어떻게 Indium oxide로 상전이 거동을 하는 지를 고찰하였다.

Keywords

References

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